http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/libminifi/test/unit/LoggerTests.cpp
----------------------------------------------------------------------
diff --git a/libminifi/test/unit/LoggerTests.cpp 
b/libminifi/test/unit/LoggerTests.cpp
index 9139be2..5f87fe6 100644
--- a/libminifi/test/unit/LoggerTests.cpp
+++ b/libminifi/test/unit/LoggerTests.cpp
@@ -21,342 +21,71 @@
 #include <memory>
 #include <ctime>
 #include "../TestBase.h"
-#include "core/logging/LogAppenders.h"
-
-bool contains(std::string stringA, std::string ending) {
-  return (ending.length() > 0 && stringA.find(ending) != std::string::npos);
-}
 
 TEST_CASE("Test log Levels", "[ttl1]") {
-  std::ostringstream oss;
-
-  std::unique_ptr<logging::BaseLogger> outputLogger = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::OutputStreamAppender(oss,
-                                                                         0));
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-  logger->updateLogger(std::move(outputLogger));
-  logger->setLogLevel("trace");
-  logger->log_info("hello world");
+  LogTestController::getInstance().setTrace<logging::Logger>();
+  std::shared_ptr<logging::Logger> logger = 
logging::LoggerFactory<logging::Logger>::getLogger();
+  logger->log_info("hello %s", "world");
 
   REQUIRE(
-      true == contains(oss.str(), "[minifi log -- 
org::apache::nifi::minifi::core::logging::OutputStreamAppender] [info] hello 
world"));
-
-  std::unique_ptr<logging::BaseLogger> nullAppender = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::NullAppender());
-
-  logger->updateLogger(std::move(nullAppender));
+      true
+          == LogTestController::getInstance().contains(
+              "[org::apache::nifi::minifi::core::logging::Logger] [info] hello 
world"));
+  LogTestController::getInstance().reset();
 }
 
 TEST_CASE("Test log Levels debug", "[ttl2]") {
-  std::ostringstream oss;
-
-  std::unique_ptr<logging::BaseLogger> outputLogger = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::OutputStreamAppender(oss,
-                                                                         0));
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-  logger->updateLogger(std::move(outputLogger));
-  logger->setLogLevel("trace");
-  logger->log_debug("hello world");
+  LogTestController::getInstance().setTrace<logging::Logger>();
+  std::shared_ptr<logging::Logger> logger = 
logging::LoggerFactory<logging::Logger>::getLogger();
+  logger->log_debug("hello %s", "world");
 
   REQUIRE(
-      true == contains(oss.str(), "[minifi log -- 
org::apache::nifi::minifi::core::logging::OutputStreamAppender] [debug] hello 
world"));
-
-  std::unique_ptr<logging::BaseLogger> nullAppender = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::NullAppender());
-
-  logger->updateLogger(std::move(nullAppender));
+      true
+          == LogTestController::getInstance().contains(
+              "[org::apache::nifi::minifi::core::logging::Logger] [debug] 
hello world"));
+  LogTestController::getInstance().reset();
 }
 
 TEST_CASE("Test log Levels trace", "[ttl3]") {
-  std::ostringstream oss;
-
-  std::unique_ptr<logging::BaseLogger> outputLogger = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::OutputStreamAppender(oss,
-                                                                         0));
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-  logger->updateLogger(std::move(outputLogger));
-  logger->setLogLevel("trace");
-
-  logger->log_trace("hello world");
+  LogTestController::getInstance().setTrace<logging::Logger>();
+  std::shared_ptr<logging::Logger> logger = 
logging::LoggerFactory<logging::Logger>::getLogger();
+  logger->log_trace("hello %s", "world");
 
   REQUIRE(
-      true == contains(oss.str(), "[minifi log -- 
org::apache::nifi::minifi::core::logging::OutputStreamAppender] [trace] hello 
world"));
-
-  std::unique_ptr<logging::BaseLogger> nullAppender = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::NullAppender());
-
-  logger->updateLogger(std::move(nullAppender));
+      true
+          == LogTestController::getInstance().contains(
+              "[org::apache::nifi::minifi::core::logging::Logger] [trace] 
hello world"));
+  LogTestController::getInstance().reset();
 }
 
 TEST_CASE("Test log Levels error", "[ttl4]") {
-  std::ostringstream oss;
-
-  std::unique_ptr<logging::BaseLogger> outputLogger = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::OutputStreamAppender(oss,
-                                                                         0));
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-  logger->updateLogger(std::move(outputLogger));
-  logger->setLogLevel("trace");
-
-  logger->log_error("hello world");
+  LogTestController::getInstance().setTrace<logging::Logger>();
+  std::shared_ptr<logging::Logger> logger = 
logging::LoggerFactory<logging::Logger>::getLogger();
+  logger->log_error("hello %s", "world");
 
   REQUIRE(
-      true == contains(oss.str(), "[minifi log -- 
org::apache::nifi::minifi::core::logging::OutputStreamAppender] [error] hello 
world"));
-
-  std::unique_ptr<logging::BaseLogger> nullAppender = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::NullAppender());
-
-  logger->updateLogger(std::move(nullAppender));
+      true
+          == LogTestController::getInstance().contains(
+              "[org::apache::nifi::minifi::core::logging::Logger] [error] 
hello world"));
+  LogTestController::getInstance().reset();
 }
 
 TEST_CASE("Test log Levels change", "[ttl5]") {
-  std::ostringstream oss;
-
-  std::unique_ptr<logging::BaseLogger> outputLogger = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::OutputStreamAppender(oss,
-                                                                         0));
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-  logger->updateLogger(std::move(outputLogger));
-  logger->setLogLevel("trace");
-
-  logger->log_error("hello world");
-
-  REQUIRE(
-      true == contains(oss.str(), "[minifi log -- 
org::apache::nifi::minifi::core::logging::OutputStreamAppender] [error] hello 
world"));
-  oss.str("");
-  oss.clear();
-  REQUIRE(0 == oss.str().length());
-  logger->setLogLevel("off");
-
-  logger->log_error("hello world");
-
-  REQUIRE(0 == oss.str().length());
-
-  std::unique_ptr<logging::BaseLogger> nullAppender = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::NullAppender());
-
-  logger->updateLogger(std::move(nullAppender));
-}
-
-TEST_CASE("Test log LevelsConfigured", "[ttl6]") {
-  std::ostringstream oss;
-
-  std::shared_ptr<minifi::Configure> config =
-      std::make_shared<minifi::Configure>();
-
-  config->set(logging::BaseLogger::nifi_log_appender, "OutputStreamAppender");
-  config->set(
-      
org::apache::nifi::minifi::core::logging::OutputStreamAppender::nifi_log_output_stream_error_stderr,
-      "true");
-
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-
-  auto oldrdbuf = std::cerr.rdbuf();
-  std::cerr.rdbuf(oss.rdbuf());
-
-  std::unique_ptr<logging::BaseLogger> newLogger =
-      logging::LogInstance::getConfiguredLogger(config);
-
-  logger->updateLogger(std::move(newLogger));
-
-  logger->setLogLevel("trace");
-
-  // capture stderr
-  logger->log_error("hello world");
-
-  REQUIRE(
-      true == contains(oss.str(), "[minifi log -- 
org::apache::nifi::minifi::core::logging::OutputStreamAppender] [error] hello 
world"));
-
-  std::cerr.rdbuf(oldrdbuf);
-
-  config->set(logging::BaseLogger::nifi_log_appender, "nullappender");
-
-  newLogger = logging::LogInstance::getConfiguredLogger(config);
-
-  logger->updateLogger(std::move(newLogger));
-
-  oss.str("");
-  oss.clear();
-  REQUIRE(0 == oss.str().length());
-
-  // should have nothing from the null appender
-  logger->log_info("hello world");
-  logger->log_debug("hello world");
-  logger->log_trace("hello world");
-
-  REQUIRE(0 == oss.str().length());
-}
-
-TEST_CASE("Test log Levels With std::string", "[ttl1]") {
-  std::ostringstream oss;
-
-  std::unique_ptr<logging::BaseLogger> outputLogger = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::OutputStreamAppender(oss,
-                                                                         0));
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-  logger->updateLogger(std::move(outputLogger));
-  logger->setLogLevel("trace");
-  std::string world = "world";
-  logger->log_error("hello %s", world);
-
-  REQUIRE(
-      true == contains(oss.str(), "[minifi log -- 
org::apache::nifi::minifi::core::logging::OutputStreamAppender] [error] hello 
world"));
-  oss.str("");
-  oss.clear();
-  REQUIRE(0 == oss.str().length());
-  logger->setLogLevel("off");
-
-  logger->log_error("hello world");
-
-  REQUIRE(0 == oss.str().length());
-
-  std::unique_ptr<logging::BaseLogger> nullAppender = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::NullAppender());
-
-  logger->updateLogger(std::move(nullAppender));
-}
-
-TEST_CASE("Test log Levels debug With std::string ", "[ttl2]") {
-  std::ostringstream oss;
-
-  std::unique_ptr<logging::BaseLogger> outputLogger = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::OutputStreamAppender(oss,
-                                                                         0));
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-  logger->updateLogger(std::move(outputLogger));
-  logger->setLogLevel("trace");
-  std::string world = "world";
-  logger->log_debug("hello %s", world);
-
-  REQUIRE(
-      true == contains(oss.str(), "[minifi log -- 
org::apache::nifi::minifi::core::logging::OutputStreamAppender] [debug] hello 
world"));
-
-  std::unique_ptr<logging::BaseLogger> nullAppender = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::NullAppender());
-
-  logger->updateLogger(std::move(nullAppender));
-}
-
-TEST_CASE("Test log Levels trace With std::string", "[ttl3]") {
-  std::ostringstream oss;
-
-  std::unique_ptr<logging::BaseLogger> outputLogger = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::OutputStreamAppender(oss,
-                                                                         0));
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-  logger->updateLogger(std::move(outputLogger));
-  logger->setLogLevel("trace");
-  std::string world = "world";
-  logger->log_trace("hello %s", world);
-
-  REQUIRE(
-      true == contains(oss.str(), "[minifi log -- 
org::apache::nifi::minifi::core::logging::OutputStreamAppender] [trace] hello 
world"));
-
-  std::unique_ptr<logging::BaseLogger> nullAppender = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::NullAppender());
-
-  logger->updateLogger(std::move(nullAppender));
-}
-
-TEST_CASE("Test log Levels error With std::string ", "[ttl4]") {
-  std::ostringstream oss;
-
-  std::unique_ptr<logging::BaseLogger> outputLogger = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::OutputStreamAppender(oss,
-                                                                         0));
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-  logger->updateLogger(std::move(outputLogger));
-  logger->setLogLevel("trace");
-
-  std::string world = "world";
-  logger->log_error("hello %s", world);
-
-  REQUIRE(
-      true == contains(oss.str(), "[minifi log -- 
org::apache::nifi::minifi::core::logging::OutputStreamAppender] [error] hello 
world"));
-
-  std::unique_ptr<logging::BaseLogger> nullAppender = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::NullAppender());
-
-  logger->updateLogger(std::move(nullAppender));
-}
-
-TEST_CASE("Test log Levels change With std::string ", "[ttl5]") {
-  std::ostringstream oss;
-
-  std::unique_ptr<logging::BaseLogger> outputLogger = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::OutputStreamAppender(oss,
-                                                                         0));
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-  logger->updateLogger(std::move(outputLogger));
-  logger->setLogLevel("trace");
-
-  std::string world = "world";
-  logger->log_error("hello %s", world);
-
-  REQUIRE(
-      true == contains(oss.str(), "[minifi log -- 
org::apache::nifi::minifi::core::logging::OutputStreamAppender] [error] hello 
world"));
-  oss.str("");
-  oss.clear();
-  REQUIRE(0 == oss.str().length());
-  logger->setLogLevel("off");
-
-  logger->log_error("hello %s", world);
-
-  REQUIRE(0 == oss.str().length());
-
-  std::unique_ptr<logging::BaseLogger> nullAppender = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::NullAppender());
-
-  logger->updateLogger(std::move(nullAppender));
-}
-
-TEST_CASE("Test log Levels change With std::string maybe ", "[ttl5]") {
-  std::ostringstream oss;
-
-  std::unique_ptr<logging::BaseLogger> outputLogger = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::OutputStreamAppender(oss,
-                                                                         0));
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-  logger->updateLogger(std::move(outputLogger));
-  logger->setLogLevel("trace");
-
+  LogTestController::getInstance().setTrace<logging::Logger>();
+  std::shared_ptr<logging::Logger> logger = 
logging::LoggerFactory<logging::Logger>::getLogger();
   logger->log_error("hello %s", "world");
 
   REQUIRE(
-      true == contains(oss.str(), "[minifi log -- 
org::apache::nifi::minifi::core::logging::OutputStreamAppender] [error] hello 
world"));
-  oss.str("");
-  oss.clear();
-  REQUIRE(0 == oss.str().length());
-  logger->setLogLevel("off");
-
+      true
+          == LogTestController::getInstance().contains(
+              "[org::apache::nifi::minifi::core::logging::Logger] [error] 
hello world"));
+  LogTestController::getInstance().reset();
+  LogTestController::getInstance().setOff<logging::Logger>();
   logger->log_error("hello %s", "world");
 
-  REQUIRE(0 == oss.str().length());
-
-  std::unique_ptr<logging::BaseLogger> nullAppender = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::NullAppender());
-
-  logger->updateLogger(std::move(nullAppender));
+  REQUIRE(
+      false
+          == LogTestController::getInstance().contains(
+              "[org::apache::nifi::minifi::core::logging::Logger] [error] 
hello world"));
+  LogTestController::getInstance().reset();
 }

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/libminifi/test/unit/ProcessorTests.cpp
----------------------------------------------------------------------
diff --git a/libminifi/test/unit/ProcessorTests.cpp 
b/libminifi/test/unit/ProcessorTests.cpp
index 82f9cae..491ca8f 100644
--- a/libminifi/test/unit/ProcessorTests.cpp
+++ b/libminifi/test/unit/ProcessorTests.cpp
@@ -25,8 +25,6 @@
 #include <fstream>
 #include "../unit/ProvenanceTestHelper.h"
 #include "../TestBase.h"
-#include "core/logging/LogAppenders.h"
-#include "core/logging/BaseLogger.h"
 #include "processors/ListenHTTP.h"
 #include "processors/LogAttribute.h"
 #include "processors/GetFile.h"
@@ -39,6 +37,7 @@
 #include "core/reporting/SiteToSiteProvenanceReportingTask.h"
 
 TEST_CASE("Test Creation of GetFile", "[getfileCreate]") {
+  TestController testController;
   std::shared_ptr<core::Processor> processor = std::make_shared<
       org::apache::nifi::minifi::processors::GetFile>("processorname");
   REQUIRE(processor->getName() == "processorname");
@@ -47,8 +46,6 @@ TEST_CASE("Test Creation of GetFile", "[getfileCreate]") {
 TEST_CASE("Test Find file", "[getfileCreate2]") {
   TestController testController;
 
-  testController.enableDebug();
-
   std::shared_ptr<core::Processor> processor = std::make_shared<
       org::apache::nifi::minifi::processors::GetFile>("getfileCreate2");
 
@@ -187,8 +184,6 @@ TEST_CASE("Test Find file", "[getfileCreate2]") {
 TEST_CASE("Test GetFileLikeIt'sThreaded", "[getfileCreate3]") {
   TestController testController;
 
-  testController.enableDebug();
-
   std::shared_ptr<core::Processor> processor = std::make_shared<
       org::apache::nifi::minifi::processors::GetFile>("getfileCreate2");
 
@@ -275,17 +270,8 @@ TEST_CASE("Test GetFileLikeIt'sThreaded", 
"[getfileCreate3]") {
 }
 
 TEST_CASE("LogAttributeTest", "[getfileCreate3]") {
-  std::ostringstream oss;
-  std::unique_ptr<logging::BaseLogger> outputLogger = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::OutputStreamAppender(oss,
-                                                                         0));
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-  logger->updateLogger(std::move(outputLogger));
-
   TestController testController;
-
-  testController.enableDebug();
+  
LogTestController::getInstance().setDebug<minifi::processors::LogAttribute>();
 
   std::shared_ptr<core::Repository> repo = std::make_shared<TestRepository>();
 
@@ -376,8 +362,6 @@ TEST_CASE("LogAttributeTest", "[getfileCreate3]") {
 
   records = reporter->getEvents();
   session.commit();
-  oss.str("");
-  oss.clear();
 
   logAttribute->incrementActiveTasks();
   logAttribute->setScheduledState(core::ScheduledState::RUNNING);
@@ -385,18 +369,10 @@ TEST_CASE("LogAttributeTest", "[getfileCreate3]") {
 
   records = reporter->getEvents();
 
-  std::string log_attribute_output = oss.str();
-  REQUIRE(
-      log_attribute_output.find("key:absolute.path value:" + ss.str())
-          != std::string::npos);
-  REQUIRE(log_attribute_output.find("Size:8 Offset:0") != std::string::npos);
-  REQUIRE(
-      log_attribute_output.find("key:path value:" + std::string(dir))
-          != std::string::npos);
-
-  outputLogger = std::unique_ptr<logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::NullAppender());
-  logger->updateLogger(std::move(outputLogger));
+  REQUIRE(true == LogTestController::getInstance().contains("key:absolute.path 
value:" + ss.str()));
+  REQUIRE(true == LogTestController::getInstance().contains("Size:8 
Offset:0"));
+  REQUIRE(true == LogTestController::getInstance().contains("key:path value:" 
+ std::string(dir)));
+  LogTestController::getInstance().reset();
 }
 
 int fileSize(const char *add) {

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/libminifi/test/unit/RepoTests.cpp
----------------------------------------------------------------------
diff --git a/libminifi/test/unit/RepoTests.cpp 
b/libminifi/test/unit/RepoTests.cpp
index 9d22030..34b1f35 100644
--- a/libminifi/test/unit/RepoTests.cpp
+++ b/libminifi/test/unit/RepoTests.cpp
@@ -43,8 +43,6 @@ TEST_CASE("Test Repo Empty Value Attribute", "[TestFFR1]") {
   REQUIRE(true == record.Serialize());
 
   repository->stop();
-
-  testController.setNullAppender();
 }
 
 TEST_CASE("Test Repo Empty Key Attribute ", "[TestFFR2]") {
@@ -66,8 +64,6 @@ TEST_CASE("Test Repo Empty Key Attribute ", "[TestFFR2]") {
   REQUIRE(true == record.Serialize());
 
   repository->stop();
-
-  testController.setNullAppender();
 }
 
 TEST_CASE("Test Repo Key Attribute Verify ", "[TestFFR3]") {

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/libminifi/test/unit/SerializationTests.cpp
----------------------------------------------------------------------
diff --git a/libminifi/test/unit/SerializationTests.cpp 
b/libminifi/test/unit/SerializationTests.cpp
index 1946a92..a66376d 100644
--- a/libminifi/test/unit/SerializationTests.cpp
+++ b/libminifi/test/unit/SerializationTests.cpp
@@ -20,8 +20,7 @@
 #include "Site2SitePeer.h"
 #include "Site2SiteClientProtocol.h"
 #include <uuid/uuid.h>
-#include "core/logging/LogAppenders.h"
-#include "core/logging/BaseLogger.h"
+#include "SiteToSiteHelper.h"
 #include <algorithm>
 #include <string>
 #include <memory>

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/libminifi/test/unit/Site2SiteTests.cpp
----------------------------------------------------------------------
diff --git a/libminifi/test/unit/Site2SiteTests.cpp 
b/libminifi/test/unit/Site2SiteTests.cpp
index 4ccf012..18878ad 100644
--- a/libminifi/test/unit/Site2SiteTests.cpp
+++ b/libminifi/test/unit/Site2SiteTests.cpp
@@ -25,8 +25,6 @@
 #include "io/BaseStream.h"
 #include "Site2SitePeer.h"
 #include "Site2SiteClientProtocol.h"
-#include "core/logging/LogAppenders.h"
-#include "core/logging/BaseLogger.h"
 #include <algorithm>
 #include "../TestBase.h"
 #include "../unit/SiteToSiteHelper.h"
@@ -100,15 +98,6 @@ void sunny_path_bootstrap(SiteToSiteResponder *collector) {
 }
 
 TEST_CASE("TestSiteToSiteVerifySend", "[S2S3]") {
-  std::ostringstream oss;
-
-  std::unique_ptr<logging::BaseLogger> outputLogger = std::unique_ptr<
-      logging::BaseLogger>(
-      new org::apache::nifi::minifi::core::logging::OutputStreamAppender(
-          std::cout, std::make_shared<minifi::Configure>()));
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-  logger->updateLogger(std::move(outputLogger));
-  logger->setLogLevel("trace");
   SiteToSiteResponder *collector = new SiteToSiteResponder();
 
   sunny_path_bootstrap(collector);

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/libminifi/test/unit/StringUtilsTests.cpp
----------------------------------------------------------------------
diff --git a/libminifi/test/unit/StringUtilsTests.cpp 
b/libminifi/test/unit/StringUtilsTests.cpp
new file mode 100644
index 0000000..7c78c98
--- /dev/null
+++ b/libminifi/test/unit/StringUtilsTests.cpp
@@ -0,0 +1,46 @@
+/**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define CATCH_CONFIG_MAIN  // This tells Catch to provide a main() - only do 
this in one cpp file
+#include <string>
+#include <vector>
+
+#include "../TestBase.h"
+#include "core/Core.h"
+#include "utils/StringUtils.h"
+
+TEST_CASE("TestStringUtils::split", "[test split no delimiter]") {
+  std::vector<std::string> expected = {"hello"};
+  REQUIRE(expected == 
org::apache::nifi::minifi::utils::StringUtils::split("hello", ","));
+}
+
+TEST_CASE("TestStringUtils::split2", "[test split single delimiter]") {
+  std::vector<std::string> expected = {"hello", "world"};
+  REQUIRE(expected == 
org::apache::nifi::minifi::utils::StringUtils::split("hello world", " "));
+}
+
+TEST_CASE("TestStringUtils::split3", "[test split multiple delimiter]") {
+  std::vector<std::string> expected = {"hello", "world", "I'm", "a", "unit", 
"test"};
+  REQUIRE(expected == 
org::apache::nifi::minifi::utils::StringUtils::split("hello world I'm a unit 
test", " "));
+}
+
+TEST_CASE("TestStringUtils::split4", "[test split classname]") {
+  std::vector<std::string> expected = {"org", "apache", "nifi", "minifi", 
"utils", "StringUtils"};
+  REQUIRE(expected == org::apache::nifi::minifi::utils::StringUtils::split(
+    
org::apache::nifi::minifi::core::getClassName<org::apache::nifi::minifi::utils::StringUtils>(),
 "::"));
+}

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/libminifi/test/unit/YamlConfigurationTests.cpp
----------------------------------------------------------------------
diff --git a/libminifi/test/unit/YamlConfigurationTests.cpp 
b/libminifi/test/unit/YamlConfigurationTests.cpp
index a7ed5df..76ddcac 100644
--- a/libminifi/test/unit/YamlConfigurationTests.cpp
+++ b/libminifi/test/unit/YamlConfigurationTests.cpp
@@ -25,6 +25,8 @@
 #include "../TestBase.h"
 
 TEST_CASE("Test YAML Config Processing", "[YamlConfiguration]") {
+  TestController test_controller;
+
   std::shared_ptr<core::Repository> testProvRepo = core::createRepository(
       "provenancerepository", true);
   std::shared_ptr<core::Repository> testFlowFileRepo = core::createRepository(

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/main/CMakeLists.txt
----------------------------------------------------------------------
diff --git a/main/CMakeLists.txt b/main/CMakeLists.txt
index f7f16e7..93f5396 100644
--- a/main/CMakeLists.txt
+++ b/main/CMakeLists.txt
@@ -23,7 +23,7 @@ IF(POLICY CMP0048)
   CMAKE_POLICY(SET CMP0048 OLD)
 ENDIF(POLICY CMP0048)
 
-include_directories(../include ../libminifi/include  
../libminifi/include/core/yaml  ../libminifi/include/core 
../thirdparty/concurrentqueue ../thirdparty/yaml-cpp-yaml-cpp-0.5.3/include 
../thirdparty/civetweb-1.9.1/include ../thirdparty/jsoncpp/include 
../thirdparty/leveldb-1.18/include ../thirdparty/)
+include_directories(../libminifi/include  ../libminifi/include/core/yaml  
../libminifi/include/core ../thirdparty/spdlog-0.13.0/include 
../thirdparty/concurrentqueue ../thirdparty/yaml-cpp-yaml-cpp-0.5.3/include 
../thirdparty/civetweb-1.9.1/include ../thirdparty/jsoncpp/include 
../thirdparty/leveldb-1.18/include ../thirdparty/)
 
 find_package(Boost REQUIRED)
 include_directories(${Boost_INCLUDE_DIRS})

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/main/MiNiFiMain.cpp
----------------------------------------------------------------------
diff --git a/main/MiNiFiMain.cpp b/main/MiNiFiMain.cpp
index 5944ff2..297313d 100644
--- a/main/MiNiFiMain.cpp
+++ b/main/MiNiFiMain.cpp
@@ -30,13 +30,13 @@
 
 #include "core/Core.h"
 
-#include "core/logging/BaseLogger.h"
-#include "core/logging/LogAppenders.h"
 #include "spdlog/spdlog.h"
 #include "core/FlowConfiguration.h"
 #include "core/ConfigurationFactory.h"
 #include "core/RepositoryFactory.h"
 #include "core/logging/Logger.h"
+#include "core/logging/LoggerConfiguration.h"
+#include "properties/Properties.h"
 #include "properties/Configure.h"
 #include "FlowController.h"
 
@@ -48,6 +48,8 @@
 #define DEFAULT_NIFI_CONFIG_YML "./conf/config.yml"
 //! Default nifi properties file path
 #define DEFAULT_NIFI_PROPERTIES_FILE "./conf/minifi.properties"
+
+#define DEFAULT_LOG_PROPERTIES_FILE "./conf/minifi-log.properties"
 //! Define home environment variable
 #define MINIFI_HOME_ENV_KEY "MINIFI_HOME"
 
@@ -79,9 +81,7 @@ void sigHandler(int signal) {
 }
 
 int main(int argc, char **argv) {
-  std::shared_ptr<logging::Logger> logger = logging::Logger::getLogger();
-
-  logger->setLogLevel(logging::info);
+  std::shared_ptr<logging::Logger> logger = 
logging::LoggerConfiguration::getConfiguration().getLogger("main");
 
   uint16_t stop_wait_time = STOP_WAIT_TIME_MS;
 
@@ -100,9 +100,9 @@ int main(int argc, char **argv) {
   std::string minifiHome;
   if (const char* env_p = std::getenv(MINIFI_HOME_ENV_KEY)) {
     minifiHome = env_p;
+    logger->log_info("MINIFI_HOME=%s", minifiHome);
   } else {
-    logger->log_info(
-        "MINIFI_HOME was not found, determining based on executable path.");
+    logger->log_info("MINIFI_HOME was not found, determining based on 
executable path.");
     char *path = NULL;
     char full_path[PATH_MAX];
     path = realpath(argv[0], full_path);
@@ -119,6 +119,14 @@ int main(int argc, char **argv) {
     return -1;
   }
 
+  std::shared_ptr<logging::LoggerProperties> log_properties = 
std::make_shared<logging::LoggerProperties>();
+  log_properties->setHome(minifiHome);
+  log_properties->loadConfigureFile(DEFAULT_LOG_PROPERTIES_FILE);
+  logging::LoggerConfiguration::getConfiguration().initialize(log_properties);
+
+  // Make a record of minifi home in the configured log file.
+  logger->log_info("MINIFI_HOME=%s", minifiHome);
+  
   std::shared_ptr<minifi::Configure> configure = 
std::make_shared<minifi::Configure>();
   configure->setHome(minifiHome);
   configure->loadConfigureFile(DEFAULT_NIFI_PROPERTIES_FILE);
@@ -142,18 +150,6 @@ int main(int argc, char **argv) {
                       STOP_WAIT_TIME_MS);
   }
 
-  std::string log_level;
-  if (configure->get(minifi::Configure::nifi_log_level,
-                     log_level)) {
-    logger->setLogLevel(log_level);
-  }
-
-  // set the log configuration.
-  std::unique_ptr<logging::BaseLogger> configured_logger =
-      logging::LogInstance::getConfiguredLogger(configure);
-
-  logger->updateLogger(std::move(configured_logger));
-
   configure->get(minifi::Configure::nifi_provenance_repository_class_name,
                  prov_repo_class);
   // Create repos for flow record and provenance

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/.gitignore
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/.gitignore 
b/thirdparty/spdlog-0.13.0/.gitignore
new file mode 100644
index 0000000..b51a05b
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/.gitignore
@@ -0,0 +1,64 @@
+# Auto generated files
+*.slo
+*.lo
+*.o
+*.obj
+*.suo
+*.tlog
+*.ilk
+*.log
+*.pdb
+*.idb
+*.iobj
+*.ipdb
+*.opensdf
+*.sdf
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
+*.exe
+*.out
+*.app
+
+# Codelite
+.codelite
+
+# .orig files
+*.orig
+
+# example  files
+example/*
+!example/example.cpp
+!example/bench.cpp
+!example/utils.h
+!example/Makefile*
+!example/example.sln
+!example/example.vcxproj
+!example/CMakeLists.txt
+!example/multisink.cpp
+!example/jni
+
+# generated files
+generated
+
+# Cmake
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Makefile
+cmake_install.cmake
+install_manifest.txt
+/tests/tests.VC.VC.opendb
+/tests/tests.VC.db
+/tests/tests
+/tests/logs/file_helper_test.txt

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/CMakeLists.txt
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/CMakeLists.txt 
b/thirdparty/spdlog-0.13.0/CMakeLists.txt
new file mode 100644
index 0000000..61c45b5
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/CMakeLists.txt
@@ -0,0 +1,87 @@
+#
+# Copyright(c) 2015 Ruslan Baratov.
+# Distributed under the MIT License (http://opensource.org/licenses/MIT)
+#
+
+cmake_minimum_required(VERSION 3.1)
+project(spdlog VERSION 1.0.0)
+include(CTest)
+
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_CXX_COMPILER_ID}" 
MATCHES "Clang")
+    set(CMAKE_CXX_FLAGS "-Wall ${CMAKE_CXX_FLAGS}")
+endif()
+
+add_library(spdlog INTERFACE)
+
+option(SPDLOG_BUILD_EXAMPLES "Build examples" OFF)
+option(SPDLOG_BUILD_TESTING "Build spdlog tests" ON)
+
+target_include_directories(
+    spdlog
+    INTERFACE
+    "$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>"
+    "$<INSTALL_INTERFACE:include>"
+)
+
+set(HEADER_BASE "${CMAKE_CURRENT_SOURCE_DIR}/include")
+
+if(SPDLOG_BUILD_EXAMPLES)
+    add_subdirectory(example)
+endif()
+
+if(SPDLOG_BUILD_TESTING)
+    add_subdirectory(tests)
+endif()
+
+### Install ###
+# * https://github.com/forexample/package-example
+set(generated_dir "${CMAKE_CURRENT_BINARY_DIR}/generated")
+
+set(config_install_dir "lib/cmake/${PROJECT_NAME}")
+set(include_install_dir "include")
+set(pkgconfig_install_dir "lib/pkgconfig")
+
+set(version_config "${generated_dir}/${PROJECT_NAME}ConfigVersion.cmake")
+set(project_config "${generated_dir}/${PROJECT_NAME}Config.cmake")
+set(pkg_config "${generated_dir}/${PROJECT_NAME}.pc")
+set(targets_export_name "${PROJECT_NAME}Targets")
+set(namespace "${PROJECT_NAME}::")
+
+include(CMakePackageConfigHelpers)
+write_basic_package_version_file(
+    "${version_config}" COMPATIBILITY SameMajorVersion
+)
+
+# Note: use 'targets_export_name'
+configure_file("cmake/Config.cmake.in" "${project_config}" @ONLY)
+configure_file("cmake/spdlog.pc.in" "${pkg_config}" @ONLY)
+
+install(
+    TARGETS spdlog
+    EXPORT "${targets_export_name}"
+    INCLUDES DESTINATION "${include_install_dir}"
+)
+
+install(DIRECTORY "include/spdlog" DESTINATION "${include_install_dir}")
+
+install(
+    FILES "${project_config}" "${version_config}"
+    DESTINATION "${config_install_dir}"
+)
+
+install(
+    FILES "${pkg_config}"
+    DESTINATION "${pkgconfig_install_dir}"
+)
+
+install(
+    EXPORT "${targets_export_name}"
+    NAMESPACE "${namespace}"
+    DESTINATION "${config_install_dir}"
+)
+
+file(GLOB_RECURSE spdlog_include_SRCS "${HEADER_BASE}/*.h")
+add_custom_target(spdlog_headers_for_ide SOURCES ${spdlog_include_SRCS})

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/INSTALL
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/INSTALL b/thirdparty/spdlog-0.13.0/INSTALL
new file mode 100644
index 0000000..664509d
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/INSTALL
@@ -0,0 +1,13 @@
+spdlog is header only library.
+Just copy the files to your build tree and use a C++11 compiler
+
+Tested on:
+gcc 4.8.1 and above
+clang 3.5
+Visual Studio 2013
+
+gcc 4.8 flags: --std==c++11 -pthread -O3 -flto -Wl,--no-as-needed
+gcc 4.9 flags: --std=c++11 -pthread -O3 -flto
+
+
+see the makefile in the example folder

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/LICENSE
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/LICENSE b/thirdparty/spdlog-0.13.0/LICENSE
new file mode 100644
index 0000000..4b43e06
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Gabi Melman.                                       
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/README.md
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/README.md 
b/thirdparty/spdlog-0.13.0/README.md
new file mode 100644
index 0000000..f5e5fe3
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/README.md
@@ -0,0 +1,218 @@
+# spdlog
+
+Very fast, header only, C++ logging library. [![Build 
Status](https://travis-ci.org/gabime/spdlog.svg?branch=master)](https://travis-ci.org/gabime/spdlog)&nbsp;
 [![Build 
status](https://ci.appveyor.com/api/projects/status/d2jnxclg20vd0o50?svg=true)](https://ci.appveyor.com/project/gabime/spdlog)
+
+
+## Install
+#### Just copy the headers:
+
+* Copy the source 
[folder](https://github.com/gabime/spdlog/tree/master/include/spdlog) to your 
build tree and use a C++11 compiler.
+
+#### Or use your favourite package manager:
+
+* Ubuntu: `apt-get install libspdlog-dev`
+* Homebrew: `brew install spdlog`
+* FreeBSD:  `cd /usr/ports/devel/spdlog/ && make install clean`
+* Fedora: `yum install spdlog`
+* Arch Linux: `pacman -S spdlog-git`
+* vcpkg: `vcpkg install spdlog`
+ 
+
+## Platforms
+ * Linux, FreeBSD, Solaris
+ * Windows (vc 2013+, cygwin/mingw)
+ * Mac OSX (clang 3.5+)
+ * Android
+
+## Features
+* Very fast - performance is the primary goal (see [benchmarks](#benchmarks) 
below).
+* Headers only, just copy and use.
+* Feature rich [call style](#usage-example) using the excellent 
[fmt](https://github.com/fmtlib/fmt) library.
+* Extremely fast asynchronous mode (optional) - using lockfree queues and 
other tricks to reach millions of calls/sec.
+* [Custom](https://github.com/gabime/spdlog/wiki/3.-Custom-formatting) 
formatting.
+* Multi/Single threaded loggers.
+* Various log targets:
+    * Rotating log files.
+    * Daily log files.
+    * Console logging (colors supported).
+    * syslog.
+    * Windows debugger (```OutputDebugString(..)```)
+    * Easily extendable with custom log targets  (just implement a single 
function in the [sink](include/spdlog/sinks/sink.h) interface).
+* Severity based filtering - threshold levels can be modified in runtime as 
well as in compile time.
+
+
+
+## Benchmarks
+
+Below are some [benchmarks](bench) comparing popular log libraries under 
Ubuntu 64 bit, Intel i7-4770 CPU @ 3.40GHz
+
+#### Synchronous mode
+Time needed to log 1,000,000 lines in synchronous mode (in seconds, the best 
of 3 runs):
+
+|threads|boost log 1.54|glog   |easylogging |spdlog|
+|-------|:-------:|:-----:|----------:|------:|
+|1|       4.169s  |1.066s |0.975s     |0.302s|
+|10|     6.180s   |3.032s |2.857s     |0.968s|
+|100|     5.981s  |1.139s |4.512s     |0.497s|
+
+
+#### Asynchronous mode
+Time needed to log 1,000,000 lines in asynchronous mode, i.e. the time it 
takes to put them in the async queue (in seconds, the best of 3 runs):
+
+|threads|g2log <sup>async logger</sup>   |spdlog <sup>async mode</sup>|
+|:-------|:-----:|-------------------------:|
+|1|       1.850s |0.216s |
+|10|      0.943s  |0.173s|
+|100|      0.959s |0.202s|
+
+
+
+
+## Usage Example
+```c++
+
+#include "spdlog/spdlog.h"
+
+#include <iostream>
+#include <memory>
+
+void async_example();
+void syslog_example();
+void user_defined_example();
+void err_handler_example();
+
+namespace spd = spdlog;
+int main(int, char*[])
+{
+    try
+    {
+        // Console logger with color
+        auto console = spd::stdout_color_mt("console");
+        console->info("Welcome to spdlog!");
+        console->error("Some error message with arg{}..", 1);
+
+        // Formatting examples
+        console->warn("Easy padding in numbers like {:08d}", 12);
+        console->critical("Support for int: {0:d};  hex: {0:x};  oct: {0:o}; 
bin: {0:b}", 42);
+        console->info("Support for floats {:03.2f}", 1.23456);
+        console->info("Positional args are {1} {0}..", "too", "supported");
+        console->info("{:<30}", "left aligned");
+        
+
+        spd::get("console")->info("loggers can be retrieved from a global 
registry using the spdlog::get(logger_name) function");
+        
+        // Create basic file logger (not rotated)
+        auto my_logger = spd::basic_logger_mt("basic_logger", 
"logs/basic.txt");
+        my_logger->info("Some log message");
+
+        // Create a file rotating logger with 5mb size max and 3 rotated files
+        auto rotating_logger = spd::rotating_logger_mt("some_logger_name", 
"logs/mylogfile", 1048576 * 5, 3);
+        for (int i = 0; i < 10; ++i)
+            rotating_logger->info("{} * {} equals {:>10}", i, i, i*i);
+
+        // Create a daily logger - a new file is created every day on 2:30am
+        auto daily_logger = spd::daily_logger_mt("daily_logger", "logs/daily", 
2, 30);
+        // trigger flush if the log severity is error or higher
+        daily_logger->flush_on(spd::level::err);
+        daily_logger->info(123.44);
+
+        // Customize msg format for all messages
+        spd::set_pattern("*** [%H:%M:%S %z] [thread %t] %v ***");
+        rotating_logger->info("This is another message with custom format");
+
+
+               // Runtime log levels
+               spd::set_level(spd::level::info); //Set global log level to info
+               console->debug("This message shold not be displayed!");
+               console->set_level(spd::level::debug); // Set specific logger's 
log level
+               console->debug("This message shold be displayed..");
+
+        // Compile time log levels
+        // define SPDLOG_DEBUG_ON or SPDLOG_TRACE_ON
+        SPDLOG_TRACE(console, "Enabled only #ifdef SPDLOG_TRACE_ON..{} ,{}", 
1, 3.23);
+        SPDLOG_DEBUG(console, "Enabled only #ifdef SPDLOG_DEBUG_ON.. {} ,{}", 
1, 3.23);
+
+        // Asynchronous logging is very fast..
+        // Just call spdlog::set_async_mode(q_size) and all created loggers 
from now on will be asynchronous..
+        async_example();
+
+        // syslog example. linux/osx only
+        syslog_example();
+
+        // android example. compile with NDK
+        android_example();
+
+        // Log user-defined types example
+        user_defined_example();
+
+        // Change default log error handler
+        err_handler_example();
+
+        // Apply a function on all registered loggers
+        spd::apply_all([&](std::shared_ptr<spdlog::logger> l)
+        {
+            l->info("End of example.");
+        });
+
+        // Release and close all loggers
+        spdlog::drop_all();
+    }
+    // Exceptions will only be thrown upon failed logger or sink construction 
(not during logging)
+    catch (const spd::spdlog_ex& ex)
+    {
+        std::cout << "Log init failed: " << ex.what() << std::endl;
+        return 1;
+    }
+}
+
+void async_example()
+{
+    size_t q_size = 4096; //queue size must be power of 2
+    spdlog::set_async_mode(q_size);
+    auto async_file = spd::daily_logger_st("async_file_logger", 
"logs/async_log.txt");
+    for (int i = 0; i < 100; ++i)
+        async_file->info("Async message #{}", i);
+}
+
+//syslog example
+void syslog_example()
+{
+#ifdef SPDLOG_ENABLE_SYSLOG 
+    std::string ident = "spdlog-example";
+    auto syslog_logger = spd::syslog_logger("syslog", ident, LOG_PID);
+    syslog_logger->warn("This is warning that will end up in syslog..");
+#endif
+}
+
+// user defined types logging by implementing operator<<
+struct my_type
+{
+    int i;
+    template<typename OStream>
+    friend OStream& operator<<(OStream& os, const my_type &c)
+    {
+        return os << "[my_type i="<<c.i << "]";
+    }
+};
+
+#include <spdlog/fmt/ostr.h> // must be included
+void user_defined_example()
+{
+    spd::get("console")->info("user defined type: {}", my_type { 14 });
+}
+
+//
+//custom error handler
+//
+void err_handler_example()
+{      
+       spdlog::set_error_handler([](const std::string& msg) {
+               std::cerr << "my err handler: " << msg << std::endl;
+       }); 
+       // (or logger->set_error_handler(..) to set for specific logger)
+}
+
+```
+
+## Documentation
+Documentation can be found in the 
[wiki](https://github.com/gabime/spdlog/wiki/1.-QuickStart) pages.

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/astyle.sh
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/astyle.sh 
b/thirdparty/spdlog-0.13.0/astyle.sh
new file mode 100755
index 0000000..a7a9051
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/astyle.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+find . -name "*\.h" -o -name "*\.cpp"|xargs dos2unix
+find . -name "*\.h" -o -name "*\.cpp"|xargs astyle -n -c -A1 
+
+

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/cmake/Config.cmake.in
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/cmake/Config.cmake.in 
b/thirdparty/spdlog-0.13.0/cmake/Config.cmake.in
new file mode 100644
index 0000000..ba0b36f
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/cmake/Config.cmake.in
@@ -0,0 +1,24 @@
+# *************************************************************************/
+# * Copyright (c) 2015 Ruslan Baratov.                                    */
+# *                                                                       */
+# * Permission is hereby granted, free of charge, to any person obtaining */
+# * a copy of this software and associated documentation files (the       */
+# * "Software"), to deal in the Software without restriction, including   */
+# * without limitation the rights to use, copy, modify, merge, publish,   */
+# * distribute, sublicense, and/or sell copies of the Software, and to    */
+# * permit persons to whom the Software is furnished to do so, subject to */
+# * the following conditions:                                             */
+# *                                                                       */
+# * The above copyright notice and this permission notice shall be        */
+# * included in all copies or substantial portions of the Software.       */
+# *                                                                       */
+# * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+# * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+# * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+# * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+# * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+# * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+# * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+# *************************************************************************/
+
+include("${CMAKE_CURRENT_LIST_DIR}/@[email protected]")

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/cmake/spdlog.pc.in
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/cmake/spdlog.pc.in 
b/thirdparty/spdlog-0.13.0/cmake/spdlog.pc.in
new file mode 100644
index 0000000..262248a
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/cmake/spdlog.pc.in
@@ -0,0 +1,6 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+includedir=${prefix}/include
+
+Name: @PROJECT_NAME@
+Description: Super fast C++ logging library. 
+Version: @PROJECT_VERSION@

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/include/spdlog/async_logger.h
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/include/spdlog/async_logger.h 
b/thirdparty/spdlog-0.13.0/include/spdlog/async_logger.h
new file mode 100644
index 0000000..76d70a3
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/include/spdlog/async_logger.h
@@ -0,0 +1,82 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+// Very fast asynchronous logger (millions of logs per second on an average 
desktop)
+// Uses pre allocated lockfree queue for maximum throughput even under large 
number of threads.
+// Creates a single back thread to pop messages from the queue and log them.
+//
+// Upon each log write the logger:
+//    1. Checks if its log level is enough to log the message
+//    2. Push a new copy of the message to a queue (or block the caller until 
space is available in the queue)
+//    3. will throw spdlog_ex upon log exceptions
+// Upon destruction, logs all remaining messages in the queue before 
destructing..
+
+#include <spdlog/common.h>
+#include <spdlog/logger.h>
+
+#include <chrono>
+#include <functional>
+#include <string>
+#include <memory>
+
+namespace spdlog
+{
+
+namespace details
+{
+class async_log_helper;
+}
+
+class async_logger :public logger
+{
+public:
+    template<class It>
+    async_logger(const std::string& name,
+                 const It& begin,
+                 const It& end,
+                 size_t queue_size,
+                 const async_overflow_policy overflow_policy =  
async_overflow_policy::block_retry,
+                 const std::function<void()>& worker_warmup_cb = nullptr,
+                 const std::chrono::milliseconds& flush_interval_ms = 
std::chrono::milliseconds::zero(),
+                 const std::function<void()>& worker_teardown_cb = nullptr);
+
+    async_logger(const std::string& logger_name,
+                 sinks_init_list sinks,
+                 size_t queue_size,
+                 const async_overflow_policy overflow_policy = 
async_overflow_policy::block_retry,
+                 const std::function<void()>& worker_warmup_cb = nullptr,
+                 const std::chrono::milliseconds& flush_interval_ms = 
std::chrono::milliseconds::zero(),
+                 const std::function<void()>& worker_teardown_cb = nullptr);
+
+    async_logger(const std::string& logger_name,
+                 sink_ptr single_sink,
+                 size_t queue_size,
+                 const async_overflow_policy overflow_policy =  
async_overflow_policy::block_retry,
+                 const std::function<void()>& worker_warmup_cb = nullptr,
+                 const std::chrono::milliseconds& flush_interval_ms = 
std::chrono::milliseconds::zero(),
+                 const std::function<void()>& worker_teardown_cb = nullptr);
+
+    //Wait for the queue to be empty, and flush synchronously
+    //Warning: this can potentialy last forever as we wait it to complete
+    void flush() override;
+
+    // Error handler
+    virtual void set_error_handler(log_err_handler) override;
+    virtual log_err_handler error_handler() override;
+
+protected:
+    void _sink_it(details::log_msg& msg) override;
+    void _set_formatter(spdlog::formatter_ptr msg_formatter) override;
+    void _set_pattern(const std::string& pattern) override;
+
+private:
+    std::unique_ptr<details::async_log_helper> _async_log_helper;
+};
+}
+
+
+#include <spdlog/details/async_logger_impl.h>

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/include/spdlog/common.h
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/include/spdlog/common.h 
b/thirdparty/spdlog-0.13.0/include/spdlog/common.h
new file mode 100644
index 0000000..a0a227e
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/include/spdlog/common.h
@@ -0,0 +1,143 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include <string>
+#include <initializer_list>
+#include <chrono>
+#include <memory>
+#include <atomic>
+#include <exception>
+#include<functional>
+
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+#include <codecvt>
+#include <locale>
+#endif
+
+#include <spdlog/details/null_mutex.h>
+
+//visual studio upto 2013 does not support noexcept nor constexpr
+#if defined(_MSC_VER) && (_MSC_VER < 1900)
+#define SPDLOG_NOEXCEPT throw()
+#define SPDLOG_CONSTEXPR
+#else
+#define SPDLOG_NOEXCEPT noexcept
+#define SPDLOG_CONSTEXPR constexpr
+#endif
+
+#if defined(__GNUC__)  || defined(__clang__)
+#define SPDLOG_DEPRECATED __attribute__((deprecated))
+#elif defined(_MSC_VER)
+#define SPDLOG_DEPRECATED __declspec(deprecated)
+#else
+#define SPDLOG_DEPRECATED
+#endif
+
+
+#include <spdlog/fmt/fmt.h>
+
+namespace spdlog
+{
+
+class formatter;
+
+namespace sinks
+{
+class sink;
+}
+
+using log_clock = std::chrono::system_clock;
+using sink_ptr = std::shared_ptr < sinks::sink >;
+using sinks_init_list = std::initializer_list < sink_ptr >;
+using formatter_ptr = std::shared_ptr<spdlog::formatter>;
+#if defined(SPDLOG_NO_ATOMIC_LEVELS)
+using level_t = details::null_atomic_int;
+#else
+using level_t = std::atomic<int>;
+#endif
+
+using log_err_handler = std::function<void(const std::string &err_msg)>;
+
+//Log level enum
+namespace level
+{
+typedef enum
+{
+    trace = 0,
+    debug = 1,
+    info = 2,
+    warn = 3,
+    err = 4,
+    critical = 5,
+    off = 6
+} level_enum;
+
+static const char* level_names[] { "trace", "debug", "info",  "warning", 
"error", "critical", "off" };
+
+static const char* short_level_names[] { "T", "D", "I", "W", "E", "C", "O" };
+
+inline const char* to_str(spdlog::level::level_enum l)
+{
+    return level_names[l];
+}
+
+inline const char* to_short_str(spdlog::level::level_enum l)
+{
+    return short_level_names[l];
+}
+} //level
+
+
+//
+// Async overflow policy - block by default.
+//
+enum class async_overflow_policy
+{
+    block_retry, // Block / yield / sleep until message can be enqueued
+    discard_log_msg // Discard the message it enqueue fails
+};
+
+
+//
+// Log exception
+//
+namespace details
+{
+namespace os
+{
+std::string errno_str(int err_num);
+}
+}
+class spdlog_ex: public std::exception
+{
+public:
+    spdlog_ex(const std::string& msg):_msg(msg)
+    {}
+    spdlog_ex(const std::string& msg, int last_errno)
+    {
+        _msg = msg + ": " + details::os::errno_str(last_errno);
+    }
+    const char* what() const SPDLOG_NOEXCEPT override
+    {
+        return _msg.c_str();
+    }
+private:
+    std::string _msg;
+
+};
+
+//
+// wchar support for windows file names (SPDLOG_WCHAR_FILENAMES must be 
defined)
+//
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+using filename_t = std::wstring;
+#else
+using filename_t = std::string;
+#endif
+
+
+} //spdlog

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/include/spdlog/details/async_log_helper.h
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/include/spdlog/details/async_log_helper.h 
b/thirdparty/spdlog-0.13.0/include/spdlog/details/async_log_helper.h
new file mode 100644
index 0000000..92a0f4c
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/include/spdlog/details/async_log_helper.h
@@ -0,0 +1,391 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+// async log helper :
+// Process logs asynchronously using a back thread.
+//
+// If the internal queue of log messages reaches its max size,
+// then the client call will block until there is more room.
+//
+// If the back thread throws during logging, a spdlog::spdlog_ex exception
+// will be thrown in client's thread when tries to log the next message
+
+#pragma once
+
+#include <spdlog/common.h>
+#include <spdlog/sinks/sink.h>
+#include <spdlog/details/mpmc_bounded_q.h>
+#include <spdlog/details/log_msg.h>
+#include <spdlog/details/os.h>
+#include <spdlog/formatter.h>
+
+#include <chrono>
+#include <exception>
+#include <functional>
+#include <memory>
+#include <string>
+#include <thread>
+#include <utility>
+#include <vector>
+
+namespace spdlog
+{
+namespace details
+{
+
+class async_log_helper
+{
+    // Async msg to move to/from the queue
+    // Movable only. should never be copied
+    enum class async_msg_type
+    {
+        log,
+        flush,
+        terminate
+    };
+    struct async_msg
+    {
+        std::string logger_name;
+        level::level_enum level;
+        log_clock::time_point time;
+        size_t thread_id;
+        std::string txt;
+        async_msg_type msg_type;
+
+        async_msg() = default;
+        ~async_msg() = default;
+
+
+async_msg(async_msg&& other) SPDLOG_NOEXCEPT:
+        logger_name(std::move(other.logger_name)),
+                    level(std::move(other.level)),
+                    time(std::move(other.time)),
+                    txt(std::move(other.txt)),
+                    msg_type(std::move(other.msg_type))
+        {}
+
+        async_msg(async_msg_type m_type):msg_type(m_type)
+        {}
+
+        async_msg& operator=(async_msg&& other) SPDLOG_NOEXCEPT
+        {
+            logger_name = std::move(other.logger_name);
+            level = other.level;
+            time = std::move(other.time);
+            thread_id = other.thread_id;
+            txt = std::move(other.txt);
+            msg_type = other.msg_type;
+            return *this;
+        }
+
+        // never copy or assign. should only be moved..
+        async_msg(const async_msg&) = delete;
+        async_msg& operator=(const async_msg& other) = delete;
+
+        // construct from log_msg
+        async_msg(const details::log_msg& m):
+            level(m.level),
+            time(m.time),
+            thread_id(m.thread_id),
+            txt(m.raw.data(), m.raw.size()),
+            msg_type(async_msg_type::log)
+        {
+#ifndef SPDLOG_NO_NAME
+            logger_name = *m.logger_name;
+#endif
+        }
+
+
+        // copy into log_msg
+        void fill_log_msg(log_msg &msg)
+        {
+            msg.logger_name = &logger_name;
+            msg.level = level;
+            msg.time = time;
+            msg.thread_id = thread_id;
+            msg.raw << txt;
+        }
+    };
+
+public:
+
+    using item_type = async_msg;
+    using q_type = details::mpmc_bounded_queue<item_type>;
+
+    using clock = std::chrono::steady_clock;
+
+
+    async_log_helper(formatter_ptr formatter,
+                     const std::vector<sink_ptr>& sinks,
+                     size_t queue_size,
+                     const log_err_handler err_handler,
+                     const async_overflow_policy overflow_policy = 
async_overflow_policy::block_retry,
+                     const std::function<void()>& worker_warmup_cb = nullptr,
+                     const std::chrono::milliseconds& flush_interval_ms = 
std::chrono::milliseconds::zero(),
+                     const std::function<void()>& worker_teardown_cb = 
nullptr);
+
+    void log(const details::log_msg& msg);
+
+    // stop logging and join the back thread
+    ~async_log_helper();
+
+    void set_formatter(formatter_ptr);
+
+    void flush(bool wait_for_q);
+
+    void set_error_handler(spdlog::log_err_handler err_handler);
+
+private:
+    formatter_ptr _formatter;
+    std::vector<std::shared_ptr<sinks::sink>> _sinks;
+
+    // queue of messages to log
+    q_type _q;
+
+    log_err_handler _err_handler;
+
+    bool _flush_requested;
+
+    bool _terminate_requested;
+
+
+    // overflow policy
+    const async_overflow_policy _overflow_policy;
+
+    // worker thread warmup callback - one can set thread priority, affinity, 
etc
+    const std::function<void()> _worker_warmup_cb;
+
+    // auto periodic sink flush parameter
+    const std::chrono::milliseconds _flush_interval_ms;
+
+    // worker thread teardown callback
+    const std::function<void()> _worker_teardown_cb;
+
+    // worker thread
+    std::thread _worker_thread;
+
+    void push_msg(async_msg&& new_msg);
+
+    // worker thread main loop
+    void worker_loop();
+
+    // pop next message from the queue and process it. will set the last_pop 
to the pop time
+    // return false if termination of the queue is required
+    bool process_next_msg(log_clock::time_point& last_pop, 
log_clock::time_point& last_flush);
+
+    void handle_flush_interval(log_clock::time_point& now, 
log_clock::time_point& last_flush);
+
+    // sleep,yield or return immediatly using the time passed since last 
message as a hint
+    static void sleep_or_yield(const spdlog::log_clock::time_point& now, const 
log_clock::time_point& last_op_time);
+
+    // wait until the queue is empty
+    void wait_empty_q();
+
+};
+}
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// async_sink class implementation
+///////////////////////////////////////////////////////////////////////////////
+inline spdlog::details::async_log_helper::async_log_helper(
+    formatter_ptr formatter,
+    const std::vector<sink_ptr>& sinks,
+    size_t queue_size,
+    log_err_handler err_handler,
+    const async_overflow_policy overflow_policy,
+    const std::function<void()>& worker_warmup_cb,
+    const std::chrono::milliseconds& flush_interval_ms,
+    const std::function<void()>& worker_teardown_cb):
+    _formatter(formatter),
+    _sinks(sinks),
+    _q(queue_size),
+    _err_handler(err_handler),
+    _flush_requested(false),
+    _terminate_requested(false),
+    _overflow_policy(overflow_policy),
+    _worker_warmup_cb(worker_warmup_cb),
+    _flush_interval_ms(flush_interval_ms),
+    _worker_teardown_cb(worker_teardown_cb),
+    _worker_thread(&async_log_helper::worker_loop, this)
+{}
+
+// Send to the worker thread termination message(level=off)
+// and wait for it to finish gracefully
+inline spdlog::details::async_log_helper::~async_log_helper()
+{
+    try
+    {
+        push_msg(async_msg(async_msg_type::terminate));
+        _worker_thread.join();
+    }
+    catch (...) // don't crash in destructor
+    {
+    }
+}
+
+
+//Try to push and block until succeeded (if the policy is not to discard when 
the queue is full)
+inline void spdlog::details::async_log_helper::log(const details::log_msg& msg)
+{
+    push_msg(async_msg(msg));
+}
+
+inline void 
spdlog::details::async_log_helper::push_msg(details::async_log_helper::async_msg&&
 new_msg)
+{
+    if (!_q.enqueue(std::move(new_msg)) && _overflow_policy != 
async_overflow_policy::discard_log_msg)
+    {
+        auto last_op_time = details::os::now();
+        auto now = last_op_time;
+        do
+        {
+            now = details::os::now();
+            sleep_or_yield(now, last_op_time);
+        }
+        while (!_q.enqueue(std::move(new_msg)));
+    }
+}
+
+// optionally wait for the queue be empty and request flush from the sinks
+inline void spdlog::details::async_log_helper::flush(bool wait_for_q)
+{
+    push_msg(async_msg(async_msg_type::flush));
+    if (wait_for_q)
+        wait_empty_q(); //return only make after the above flush message was 
processed
+}
+
+inline void spdlog::details::async_log_helper::worker_loop()
+{
+    if (_worker_warmup_cb) _worker_warmup_cb();
+    auto last_pop = details::os::now();
+    auto last_flush = last_pop;
+    auto active = true;
+    while (active)
+    {
+        try
+        {
+            active = process_next_msg(last_pop, last_flush);
+        }
+        catch (const std::exception &ex)
+        {
+            _err_handler(ex.what());
+        }
+        catch (...)
+        {
+            _err_handler("Unknown exception");
+        }
+    }
+    if (_worker_teardown_cb) _worker_teardown_cb();
+
+
+}
+
+// process next message in the queue
+// return true if this thread should still be active (while no terminate msg 
was received)
+inline bool 
spdlog::details::async_log_helper::process_next_msg(log_clock::time_point& 
last_pop, log_clock::time_point& last_flush)
+{
+    async_msg incoming_async_msg;
+
+    if (_q.dequeue(incoming_async_msg))
+    {
+        last_pop = details::os::now();
+        switch (incoming_async_msg.msg_type)
+        {
+        case async_msg_type::flush:
+            _flush_requested = true;
+            break;
+
+        case async_msg_type::terminate:
+            _flush_requested = true;
+            _terminate_requested = true;
+            break;
+
+        default:
+            log_msg incoming_log_msg;
+            incoming_async_msg.fill_log_msg(incoming_log_msg);
+            _formatter->format(incoming_log_msg);
+            for (auto &s : _sinks)
+            {
+                if (s->should_log(incoming_log_msg.level))
+                {
+                    s->log(incoming_log_msg);
+                }
+            }
+        }
+        return true;
+    }
+
+    // Handle empty queue..
+    // This is the only place where the queue can terminate or flush to avoid 
losing messages already in the queue
+    else
+    {
+        auto now = details::os::now();
+        handle_flush_interval(now, last_flush);
+        sleep_or_yield(now, last_pop);
+        return !_terminate_requested;
+    }
+}
+
+// flush all sinks if _flush_interval_ms has expired
+inline void 
spdlog::details::async_log_helper::handle_flush_interval(log_clock::time_point& 
now, log_clock::time_point& last_flush)
+{
+    auto should_flush = _flush_requested || (_flush_interval_ms != 
std::chrono::milliseconds::zero() && now - last_flush >= _flush_interval_ms);
+    if (should_flush)
+    {
+        for (auto &s : _sinks)
+            s->flush();
+        now = last_flush = details::os::now();
+        _flush_requested = false;
+    }
+}
+
+inline void spdlog::details::async_log_helper::set_formatter(formatter_ptr 
msg_formatter)
+{
+    _formatter = msg_formatter;
+}
+
+
+// spin, yield or sleep. use the time passed since last message as a hint
+inline void spdlog::details::async_log_helper::sleep_or_yield(const 
spdlog::log_clock::time_point& now, const spdlog::log_clock::time_point& 
last_op_time)
+{
+    using namespace std::this_thread;
+    using std::chrono::milliseconds;
+    using std::chrono::microseconds;
+
+    auto time_since_op = now - last_op_time;
+
+    // spin upto 50 micros
+    if (time_since_op <= microseconds(50))
+        return;
+
+    // yield upto 150 micros
+    if (time_since_op <= microseconds(100))
+        return std::this_thread::yield();
+
+    // sleep for 20 ms upto 200 ms
+    if (time_since_op <= milliseconds(200))
+        return sleep_for(milliseconds(20));
+
+    // sleep for 200 ms
+    return sleep_for(milliseconds(200));
+}
+
+// wait for the queue to be empty
+inline void spdlog::details::async_log_helper::wait_empty_q()
+{
+    auto last_op = details::os::now();
+    while (_q.approx_size() > 0)
+    {
+        sleep_or_yield(details::os::now(), last_op);
+    }
+}
+
+inline void 
spdlog::details::async_log_helper::set_error_handler(spdlog::log_err_handler 
err_handler)
+{
+    _err_handler = err_handler;
+}
+
+
+

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/include/spdlog/details/async_logger_impl.h
----------------------------------------------------------------------
diff --git 
a/thirdparty/spdlog-0.13.0/include/spdlog/details/async_logger_impl.h 
b/thirdparty/spdlog-0.13.0/include/spdlog/details/async_logger_impl.h
new file mode 100644
index 0000000..487c628
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/include/spdlog/details/async_logger_impl.h
@@ -0,0 +1,102 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+// Async Logger implementation
+// Use an async_sink (queue per logger) to perform the logging in a worker 
thread
+
+#include <spdlog/details/async_log_helper.h>
+#include <spdlog/async_logger.h>
+
+#include <string>
+#include <functional>
+#include <chrono>
+#include <memory>
+
+template<class It>
+inline spdlog::async_logger::async_logger(const std::string& logger_name,
+        const It& begin,
+        const It& end,
+        size_t queue_size,
+        const  async_overflow_policy overflow_policy,
+        const std::function<void()>& worker_warmup_cb,
+        const std::chrono::milliseconds& flush_interval_ms,
+        const std::function<void()>& worker_teardown_cb) :
+    logger(logger_name, begin, end),
+    _async_log_helper(new details::async_log_helper(_formatter, _sinks, 
queue_size, _err_handler, overflow_policy, worker_warmup_cb, flush_interval_ms, 
worker_teardown_cb))
+{
+}
+
+inline spdlog::async_logger::async_logger(const std::string& logger_name,
+        sinks_init_list sinks_list,
+        size_t queue_size,
+        const  async_overflow_policy overflow_policy,
+        const std::function<void()>& worker_warmup_cb,
+        const std::chrono::milliseconds& flush_interval_ms,
+        const std::function<void()>& worker_teardown_cb) :
+    async_logger(logger_name, sinks_list.begin(), sinks_list.end(), 
queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms, 
worker_teardown_cb) {}
+
+inline spdlog::async_logger::async_logger(const std::string& logger_name,
+        sink_ptr single_sink,
+        size_t queue_size,
+        const  async_overflow_policy overflow_policy,
+        const std::function<void()>& worker_warmup_cb,
+        const std::chrono::milliseconds& flush_interval_ms,
+        const std::function<void()>& worker_teardown_cb) :
+    async_logger(logger_name,
+{
+    single_sink
+}, queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms, 
worker_teardown_cb) {}
+
+
+inline void spdlog::async_logger::flush()
+{
+    _async_log_helper->flush(true);
+}
+
+// Error handler
+inline void spdlog::async_logger::set_error_handler(spdlog::log_err_handler 
err_handler)
+{
+    _err_handler = err_handler;
+    _async_log_helper->set_error_handler(err_handler);
+
+}
+inline spdlog::log_err_handler spdlog::async_logger::error_handler()
+{
+    return _err_handler;
+}
+
+
+inline void spdlog::async_logger::_set_formatter(spdlog::formatter_ptr 
msg_formatter)
+{
+    _formatter = msg_formatter;
+    _async_log_helper->set_formatter(_formatter);
+}
+
+inline void spdlog::async_logger::_set_pattern(const std::string& pattern)
+{
+    _formatter = std::make_shared<pattern_formatter>(pattern);
+    _async_log_helper->set_formatter(_formatter);
+}
+
+
+inline void spdlog::async_logger::_sink_it(details::log_msg& msg)
+{
+    try
+    {
+        _async_log_helper->log(msg);
+        if (_should_flush_on(msg))
+            _async_log_helper->flush(false); // do async flush
+    }
+    catch (const std::exception &ex)
+    {
+        _err_handler(ex.what());
+    }
+    catch (...)
+    {
+        _err_handler("Unknown exception");
+    }
+}

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/include/spdlog/details/file_helper.h
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/include/spdlog/details/file_helper.h 
b/thirdparty/spdlog-0.13.0/include/spdlog/details/file_helper.h
new file mode 100644
index 0000000..074d9b8
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/include/spdlog/details/file_helper.h
@@ -0,0 +1,118 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+// Helper class for file sink
+// When failing to open a file, retry several times(5) with small delay 
between the tries(10 ms)
+// Can be set to auto flush on every line
+// Throw spdlog_ex exception on errors
+
+#include <spdlog/details/os.h>
+#include <spdlog/details/log_msg.h>
+
+#include <chrono>
+#include <cstdio>
+#include <string>
+#include <thread>
+#include <cerrno>
+
+namespace spdlog
+{
+namespace details
+{
+
+class file_helper
+{
+
+public:
+    const int open_tries = 5;
+    const int open_interval = 10;
+
+    explicit file_helper() :
+        _fd(nullptr)
+    {}
+
+    file_helper(const file_helper&) = delete;
+    file_helper& operator=(const file_helper&) = delete;
+
+    ~file_helper()
+    {
+        close();
+    }
+
+
+    void open(const filename_t& fname, bool truncate = false)
+    {
+
+        close();
+        auto *mode = truncate ? SPDLOG_FILENAME_T("wb") : 
SPDLOG_FILENAME_T("ab");
+        _filename = fname;
+        for (int tries = 0; tries < open_tries; ++tries)
+        {
+            if (!os::fopen_s(&_fd, fname, mode))
+                return;
+
+            
std::this_thread::sleep_for(std::chrono::milliseconds(open_interval));
+        }
+
+        throw spdlog_ex("Failed opening file " + 
os::filename_to_str(_filename) + " for writing", errno);
+    }
+
+    void reopen(bool truncate)
+    {
+        if (_filename.empty())
+            throw spdlog_ex("Failed re opening file - was not opened before");
+        open(_filename, truncate);
+
+    }
+
+    void flush()
+    {
+        std::fflush(_fd);
+    }
+
+    void close()
+    {
+        if (_fd)
+        {
+            std::fclose(_fd);
+            _fd = nullptr;
+        }
+    }
+
+    void write(const log_msg& msg)
+    {
+
+        size_t msg_size = msg.formatted.size();
+        auto data = msg.formatted.data();
+        if (std::fwrite(data, 1, msg_size, _fd) != msg_size)
+            throw spdlog_ex("Failed writing to file " + 
os::filename_to_str(_filename), errno);
+    }
+
+    size_t size()
+    {
+        if (!_fd)
+            throw spdlog_ex("Cannot use size() on closed file " + 
os::filename_to_str(_filename));
+        return os::filesize(_fd);
+    }
+
+    const filename_t& filename() const
+    {
+        return _filename;
+    }
+
+    static bool file_exists(const filename_t& name)
+    {
+
+        return os::file_exists(name);
+    }
+
+private:
+    FILE* _fd;
+    filename_t _filename;
+};
+}
+}

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/include/spdlog/details/log_msg.h
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/include/spdlog/details/log_msg.h 
b/thirdparty/spdlog-0.13.0/include/spdlog/details/log_msg.h
new file mode 100644
index 0000000..ecdc73d
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/include/spdlog/details/log_msg.h
@@ -0,0 +1,46 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include <spdlog/common.h>
+#include <spdlog/details/os.h>
+
+
+#include <string>
+#include <utility>
+
+namespace spdlog
+{
+namespace details
+{
+struct log_msg
+{
+    log_msg() = default;
+    log_msg(const std::string *loggers_name, level::level_enum lvl) : 
logger_name(loggers_name), level(lvl)
+    {
+#ifndef SPDLOG_NO_DATETIME
+        time = os::now();
+#endif
+
+#ifndef SPDLOG_NO_THREAD_ID
+        thread_id = os::thread_id();
+#endif
+    }
+
+    log_msg(const log_msg& other)  = delete;
+    log_msg& operator=(log_msg&& other) = delete;
+    log_msg(log_msg&& other) = delete;
+
+
+    const std::string *logger_name;
+    level::level_enum level;
+    log_clock::time_point time;
+    size_t thread_id;
+    fmt::MemoryWriter raw;
+    fmt::MemoryWriter formatted;
+};
+}
+}

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/include/spdlog/details/logger_impl.h
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/include/spdlog/details/logger_impl.h 
b/thirdparty/spdlog-0.13.0/include/spdlog/details/logger_impl.h
new file mode 100644
index 0000000..5bb85f6
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/include/spdlog/details/logger_impl.h
@@ -0,0 +1,296 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include <spdlog/logger.h>
+#include <spdlog/sinks/stdout_sinks.h>
+
+#include <memory>
+#include <string>
+
+
+// create logger with given name, sinks and the default pattern formatter
+// all other ctors will call this one
+template<class It>
+inline spdlog::logger::logger(const std::string& logger_name, const It& begin, 
const It& end):
+    _name(logger_name),
+    _sinks(begin, end),
+    _formatter(std::make_shared<pattern_formatter>("%+"))
+{
+    _level = level::info;
+    _flush_level = level::off;
+    _last_err_time = 0;
+    _err_handler = [this](const std::string &msg)
+    {
+        this->_default_err_handler(msg);
+    };
+}
+
+// ctor with sinks as init list
+inline spdlog::logger::logger(const std::string& logger_name, sinks_init_list 
sinks_list):
+    logger(logger_name, sinks_list.begin(), sinks_list.end())
+{}
+
+
+// ctor with single sink
+inline spdlog::logger::logger(const std::string& logger_name, spdlog::sink_ptr 
single_sink):
+    logger(logger_name,
+{
+    single_sink
+})
+{}
+
+
+inline spdlog::logger::~logger() = default;
+
+
+inline void spdlog::logger::set_formatter(spdlog::formatter_ptr msg_formatter)
+{
+    _set_formatter(msg_formatter);
+}
+
+inline void spdlog::logger::set_pattern(const std::string& pattern)
+{
+    _set_pattern(pattern);
+}
+
+
+template <typename... Args>
+inline void spdlog::logger::log(level::level_enum lvl, const char* fmt, const 
Args&... args)
+{
+    if (!should_log(lvl)) return;
+
+    try
+    {
+        details::log_msg log_msg(&_name, lvl);
+        log_msg.raw.write(fmt, args...);
+        _sink_it(log_msg);
+    }
+    catch (const std::exception &ex)
+    {
+        _err_handler(ex.what());
+    }
+    catch (...)
+    {
+        _err_handler("Unknown exception");
+    }
+}
+
+template <typename... Args>
+inline void spdlog::logger::log(level::level_enum lvl, const char* msg)
+{
+    if (!should_log(lvl)) return;
+    try
+    {
+        details::log_msg log_msg(&_name, lvl);
+        log_msg.raw << msg;
+        _sink_it(log_msg);
+    }
+    catch (const std::exception &ex)
+    {
+        _err_handler(ex.what());
+    }
+    catch (...)
+    {
+        _err_handler("Unknown exception");
+    }
+
+}
+
+template<typename T>
+inline void spdlog::logger::log(level::level_enum lvl, const T& msg)
+{
+    if (!should_log(lvl)) return;
+    try
+    {
+        details::log_msg log_msg(&_name, lvl);
+        log_msg.raw << msg;
+        _sink_it(log_msg);
+    }
+    catch (const std::exception &ex)
+    {
+        _err_handler(ex.what());
+    }
+    catch (...)
+    {
+        _err_handler("Unknown exception");
+    }
+}
+
+
+template <typename Arg1, typename... Args>
+inline void spdlog::logger::trace(const char* fmt, const Arg1 &arg1, const 
Args&... args)
+{
+    log(level::trace, fmt, arg1, args...);
+}
+
+template <typename Arg1, typename... Args>
+inline void spdlog::logger::debug(const char* fmt, const Arg1 &arg1, const 
Args&... args)
+{
+    log(level::debug, fmt, arg1, args...);
+}
+
+template <typename Arg1, typename... Args>
+inline void spdlog::logger::info(const char* fmt, const Arg1 &arg1, const 
Args&... args)
+{
+    log(level::info, fmt, arg1, args...);
+}
+
+template <typename Arg1, typename... Args>
+inline void spdlog::logger::warn(const char* fmt, const Arg1 &arg1, const 
Args&... args)
+{
+    log(level::warn, fmt, arg1, args...);
+}
+
+template <typename Arg1, typename... Args>
+inline void spdlog::logger::error(const char* fmt, const Arg1 &arg1, const 
Args&... args)
+{
+    log(level::err, fmt, arg1, args...);
+}
+
+template <typename Arg1, typename... Args>
+inline void spdlog::logger::critical(const char* fmt, const Arg1 &arg1, const 
Args&... args)
+{
+    log(level::critical, fmt, arg1, args...);
+}
+
+template<typename T>
+inline void spdlog::logger::trace(const T& msg)
+{
+    log(level::trace, msg);
+}
+
+template<typename T>
+inline void spdlog::logger::debug(const T& msg)
+{
+    log(level::debug, msg);
+}
+
+
+template<typename T>
+inline void spdlog::logger::info(const T& msg)
+{
+    log(level::info, msg);
+}
+
+
+template<typename T>
+inline void spdlog::logger::warn(const T& msg)
+{
+    log(level::warn, msg);
+}
+
+template<typename T>
+inline void spdlog::logger::error(const T& msg)
+{
+    log(level::err, msg);
+}
+
+template<typename T>
+inline void spdlog::logger::critical(const T& msg)
+{
+    log(level::critical, msg);
+}
+
+
+
+
+//
+// name and level
+//
+inline const std::string& spdlog::logger::name() const
+{
+    return _name;
+}
+
+inline void spdlog::logger::set_level(spdlog::level::level_enum log_level)
+{
+    _level.store(log_level);
+}
+
+inline void spdlog::logger::set_error_handler(spdlog::log_err_handler 
err_handler)
+{
+    _err_handler = err_handler;
+}
+
+inline spdlog::log_err_handler spdlog::logger::error_handler()
+{
+    return _err_handler;
+}
+
+
+inline void spdlog::logger::flush_on(level::level_enum log_level)
+{
+    _flush_level.store(log_level);
+}
+
+inline spdlog::level::level_enum spdlog::logger::level() const
+{
+    return 
static_cast<spdlog::level::level_enum>(_level.load(std::memory_order_relaxed));
+}
+
+inline bool spdlog::logger::should_log(spdlog::level::level_enum msg_level) 
const
+{
+    return msg_level >= _level.load(std::memory_order_relaxed);
+}
+
+//
+// protected virtual called at end of each user log call (if enabled) by the 
line_logger
+//
+inline void spdlog::logger::_sink_it(details::log_msg& msg)
+{
+    _formatter->format(msg);
+    for (auto &sink : _sinks)
+    {
+        if( sink->should_log( msg.level))
+        {
+            sink->log(msg);
+        }
+    }
+
+    if(_should_flush_on(msg))
+        flush();
+}
+
+inline void spdlog::logger::_set_pattern(const std::string& pattern)
+{
+    _formatter = std::make_shared<pattern_formatter>(pattern);
+}
+inline void spdlog::logger::_set_formatter(formatter_ptr msg_formatter)
+{
+    _formatter = msg_formatter;
+}
+
+inline void spdlog::logger::flush()
+{
+    for (auto& sink : _sinks)
+        sink->flush();
+}
+
+inline void spdlog::logger::_default_err_handler(const std::string &msg)
+{
+    auto now = time(nullptr);
+    if (now - _last_err_time < 60)
+        return;
+    auto tm_time = details::os::localtime(now);
+    char date_buf[100];
+    std::strftime(date_buf, sizeof(date_buf), "%Y-%m-%d %H:%M:%S", &tm_time);
+    details::log_msg  err_msg;
+    err_msg.formatted.write("[*** LOG ERROR ***] [{}] [{}] [{}]{}", name(), 
msg, date_buf, details::os::eol);
+    sinks::stderr_sink_mt::instance()->log(err_msg);
+    _last_err_time = now;
+}
+
+inline bool spdlog::logger::_should_flush_on(const details::log_msg &msg)
+{
+    const auto flush_level = _flush_level.load(std::memory_order_relaxed);
+    return (msg.level >= flush_level) && (msg.level != level::off);
+}
+
+inline const std::vector<spdlog::sink_ptr>& spdlog::logger::sinks() const
+{
+    return _sinks;
+}

http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/73ecc667/thirdparty/spdlog-0.13.0/include/spdlog/details/mpmc_bounded_q.h
----------------------------------------------------------------------
diff --git a/thirdparty/spdlog-0.13.0/include/spdlog/details/mpmc_bounded_q.h 
b/thirdparty/spdlog-0.13.0/include/spdlog/details/mpmc_bounded_q.h
new file mode 100644
index 0000000..3a46e8e
--- /dev/null
+++ b/thirdparty/spdlog-0.13.0/include/spdlog/details/mpmc_bounded_q.h
@@ -0,0 +1,172 @@
+/*
+A modified version of Bounded MPMC queue by Dmitry Vyukov.
+
+Original code from:
+http://www.1024cores.net/home/lock-free-algorithms/queues/bounded-mpmc-queue
+
+licensed by Dmitry Vyukov under the terms below:
+
+Simplified BSD license
+
+Copyright (c) 2010-2011 Dmitry Vyukov. All rights reserved.
+Redistribution and use in source and binary forms, with or without 
modification,
+are permitted provided that the following conditions are met:
+1. Redistributions of source code must retain the above copyright notice, this 
list of
+conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, 
this list
+of conditions and the following disclaimer in the documentation and/or other 
materials
+provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY DMITRY VYUKOV "AS IS" AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 
EVENT
+SHALL DMITRY VYUKOV OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+The views and conclusions contained in the software and documentation are 
those of the authors and
+should not be interpreted as representing official policies, either expressed 
or implied, of Dmitry Vyukov.
+*/
+
+/*
+The code in its current form adds the license below:
+
+Copyright(c) 2015 Gabi Melman.
+Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+*/
+
+#pragma once
+
+#include <spdlog/common.h>
+
+#include <atomic>
+#include <utility>
+
+namespace spdlog
+{
+namespace details
+{
+
+template<typename T>
+class mpmc_bounded_queue
+{
+public:
+
+    using item_type = T;
+    mpmc_bounded_queue(size_t buffer_size)
+        :max_size_(buffer_size),
+         buffer_(new cell_t [buffer_size]),
+         buffer_mask_(buffer_size - 1)
+    {
+        //queue size must be power of two
+        if(!((buffer_size >= 2) && ((buffer_size & (buffer_size - 1)) == 0)))
+            throw spdlog_ex("async logger queue size must be power of two");
+
+        for (size_t i = 0; i != buffer_size; i += 1)
+            buffer_[i].sequence_.store(i, std::memory_order_relaxed);
+        enqueue_pos_.store(0, std::memory_order_relaxed);
+        dequeue_pos_.store(0, std::memory_order_relaxed);
+    }
+
+    ~mpmc_bounded_queue()
+    {
+        delete [] buffer_;
+    }
+
+
+    bool enqueue(T&& data)
+    {
+        cell_t* cell;
+        size_t pos = enqueue_pos_.load(std::memory_order_relaxed);
+        for (;;)
+        {
+            cell = &buffer_[pos & buffer_mask_];
+            size_t seq = cell->sequence_.load(std::memory_order_acquire);
+            intptr_t dif = (intptr_t)seq - (intptr_t)pos;
+            if (dif == 0)
+            {
+                if (enqueue_pos_.compare_exchange_weak(pos, pos + 1, 
std::memory_order_relaxed))
+                    break;
+            }
+            else if (dif < 0)
+            {
+                return false;
+            }
+            else
+            {
+                pos = enqueue_pos_.load(std::memory_order_relaxed);
+            }
+        }
+        cell->data_ = std::move(data);
+        cell->sequence_.store(pos + 1, std::memory_order_release);
+        return true;
+    }
+
+    bool dequeue(T& data)
+    {
+        cell_t* cell;
+        size_t pos = dequeue_pos_.load(std::memory_order_relaxed);
+        for (;;)
+        {
+            cell = &buffer_[pos & buffer_mask_];
+            size_t seq =
+                cell->sequence_.load(std::memory_order_acquire);
+            intptr_t dif = (intptr_t)seq - (intptr_t)(pos + 1);
+            if (dif == 0)
+            {
+                if (dequeue_pos_.compare_exchange_weak(pos, pos + 1, 
std::memory_order_relaxed))
+                    break;
+            }
+            else if (dif < 0)
+                return false;
+            else
+                pos = dequeue_pos_.load(std::memory_order_relaxed);
+        }
+        data = std::move(cell->data_);
+        cell->sequence_.store(pos + buffer_mask_ + 1, 
std::memory_order_release);
+        return true;
+    }
+
+    size_t approx_size()
+    {
+        size_t first_pos = dequeue_pos_.load(std::memory_order_relaxed);
+        size_t last_pos = enqueue_pos_.load(std::memory_order_relaxed);
+        if (last_pos <= first_pos)
+            return 0;
+        auto size = last_pos - first_pos;
+        return size < max_size_ ? size : max_size_;
+    }
+
+private:
+    struct cell_t
+    {
+        std::atomic<size_t>   sequence_;
+        T                     data_;
+    };
+
+    size_t const max_size_;
+
+    static size_t const     cacheline_size = 64;
+    typedef char            cacheline_pad_t [cacheline_size];
+
+    cacheline_pad_t         pad0_;
+    cell_t* const           buffer_;
+    size_t const            buffer_mask_;
+    cacheline_pad_t         pad1_;
+    std::atomic<size_t>     enqueue_pos_;
+    cacheline_pad_t         pad2_;
+    std::atomic<size_t>     dequeue_pos_;
+    cacheline_pad_t         pad3_;
+
+    mpmc_bounded_queue(mpmc_bounded_queue const&) = delete;
+    void operator= (mpmc_bounded_queue const&) = delete;
+};
+
+} // ns details
+} // ns spdlog

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